Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee139...

[linux-2.6-microblaze.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index dc30284..dbf94a7 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -761,6 +761,15 @@ config PANIC_ON_OOPS_VALUE
        default 0 if !PANIC_ON_OOPS
        default 1 if PANIC_ON_OOPS
 
+config PANIC_TIMEOUT
+       int "panic timeout"
+       default 0
+       help
+         Set the timeout value (in seconds) until a reboot occurs when the
+         the kernel panics. If n = 0, then we wait forever. A timeout
+         value n > 0 will wait n seconds before rebooting, while a timeout
+         value n < 0 will reboot immediately.
+
 config SCHED_DEBUG
        bool "Collect scheduler debugging info"
        depends on DEBUG_KERNEL && PROC_FS
@@ -1564,8 +1573,43 @@ config DMA_API_DEBUG
          With this option you will be able to detect common bugs in device
          drivers like double-freeing of DMA mappings or freeing mappings that
          were never allocated.
-         This option causes a performance degredation.  Use only if you want
-         to debug device drivers. If unsure, say N.
+
+         This also attempts to catch cases where a page owned by DMA is
+         accessed by the cpu in a way that could cause data corruption.  For
+         example, this enables cow_user_page() to check that the source page is
+         not undergoing DMA.
+
+         This option causes a performance degradation.  Use only if you want to
+         debug device drivers and dma interactions.
+
+         If unsure, say N.
+
+config TEST_MODULE
+       tristate "Test module loading with 'hello world' module"
+       default n
+       depends on m
+       help
+         This builds the "test_module" module that emits "Hello, world"
+         on printk when loaded. It is designed to be used for basic
+         evaluation of the module loading subsystem (for example when
+         validating module verification). It lacks any extra dependencies,
+         and will not normally be loaded by the system unless explicitly
+         requested by name.
+
+         If unsure, say N.
+
+config TEST_USER_COPY
+       tristate "Test user/kernel boundary protections"
+       default n
+       depends on m
+       help
+         This builds the "test_user_copy" module that runs sanity checks
+         on the copy_to/from_user infrastructure, making sure basic
+         user/kernel boundary testing is working. If it fails to load,
+         a regression has been detected in the user/kernel memory boundary
+         protections.
+
+         If unsure, say N.
 
 source "samples/Kconfig"